I had not brought this up as I thought RU5 was suppose to have the fix in it however I just was on a call and it sounds like this was never added to the current RU.
There is an issue when you enabled NTLM authentication in Outlook Anywhere when Exchange is installed on Windows 2008.
By default, Kernel Mode Authentication is enabled in IIS 7.0 on the Client Access server (CAS). To resolve this issue, disable Kernel Mode Authentication for Client Access servers that are running Windows Server 2008
1. open a command prompt window
2. cd \%systemroot%\system32\inetsrv\
3. AppCmd.exe set config /section:system.webServer/security/authentication/windowsAuthentication /useKernelMode:false
When you have the Outlook Anywhere feature configured on a Windows Server 2008-based computer that is running Terminal Services Gateway, you may experience the following symptoms:
- If you enable Outlook Anywhere before you install Terminal Services Gateway, users cannot connect to their Exchange mailboxes by using RPC over HTTP.
- If you enable Outlook Anywhere after you install Terminal Services Gateway, Outlook Anywhere users can connect to Exchange by using RPC over HTTP. However, after you open the TS Gateway Manager snap-in, Outlook Anywhere users can no longer connect to Exchange by using RPC over HTTP